Inverted incandescent lamp.



PATENTED 0CT 9, 1906.

0. IWIEDERHOLD. INVERTED INGANDESGENT LAMP.

APPLICATION FILED JUNE 30, 19,05.

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y To all whom, t may concerma U'Nrrnn STAT-Es PATENT OFFIO.' E.

. I OSCAR WIEDERHOLD, OF JERSEY OITYnNElV JERSEY.

INVERTED INCANDESCENT LAMP.

Specification e1" Letters Fatent.

Patented Oct. 9, 1906.

Application Sled June 30, 1965. Serial Nc. 267.730.

Be it known that I, Oser-xn WiEnERuoLD, a

cent lamps, and has for its object to produce an inverted incandescent lamp in which the air and gas mixture can be brought to the mantle in a Very efficiently-mixed condition and at the proper temperature.

In the accompanying drawings I have shown a lamp in which one embodiment of my invention is illustrated. l

Inthe drawings, Figure l is a sectional elevation of the lamp. Fig. 2 is a sidel elevation of the feeder with the shield removed.

In the drawings, a indicates a mantle which maybe suitably supported-as, for instance, by meansof a mantle-sup ort b, screw-threaded upon a nipple c, -w ich 'is firmly attached to the delivery-tubeV d of a mixing-chamber of which the said deliverytube (l constitutes a part- This mixingchamber isu of a general form of an inverted cone e and is shown in the present instance as provided at its ends with cylindrical portions f and (Z,- the lower cylindrical portion being the delivery-tube of the burner. Enteringr the side of-the mixing-chamber isa gaswaytube g. This gasway tube is curved, as shown, and seated on a delivery device7 which will be hereinafter described. v,

Located within the mixing-chamber is a screen h of a general conical form, into which screen the mixture is delivered by the pipe g.

It will be understood that this screen, Whileshown 4in the present instance as of a general conical or conoidal form,wl1ich`terms, for the purpose of this speciiication, I regard as synonymous, may also be of other depressed or truncated forms so long as it receives gas from the gasway and extends sufliciently below theentrance of the gasway into the side of the mixing-chamber to bring about an efficient mixin and delivery of the air and gas mixture. he to ofthe mixing-chamber is preferably closed Ey a removable cover fi, and upon the ed e .thus formed arms may be hooked, Whic arms su port a crown-piece k, provided with screws adapted to support the glassware m'of the lamp. i

Referring particularly to Fig. 2. and to' the lower part of Fig. 1, I will now proceed to describe the delivery device. This delivery device consists of several elements. A threaded sleeve n is adapted to engage the nipple and the gas-fixture. Along this threaded sleeve is a shell whose lower portion is substantially straight and which is surmounted by a contracted portion p, sumounted in turn by a substantially straight portion (l,

which terminates at a flaring portion r. This shell is pierced laterally at s for the passage of air. Located within the shell is a regulator t in the form of a casinor surroundinr the coneshaped upper end-Q1J ofthe nip le o and screwthreaded thereon and prefera ly milled at its lower portion o, so that by rotating the said casing the same will be raised or lowered and admit more or less gas to the shell. A pair of arms w, struck in the shell, are adapted to limit the movement of the regulator.

It will be observedthat by takin the gasinto the lamp at a point distant om the burner and taking it into the side of the l mixing-chamb er the vertical ipe, through which the gas must be forced dldwnwardly, is very short and that consequently a very efficient Bunsen effect will be obtained-that is to sayv the vertical distance from the entrance-point of the gas into the mixing-chamber to the delivery-point of the gas at the burner is very short.

Having described myinvention, what I claim, and desire to secure by LettersvPatf ent, ist 1. In an inverted incandescent lamp, the combination of a regenerative chamber of ,a general inverted conical form anda sieve of a general inverted conical form contained therein and a gaswayentering the side of the inverted regenerative chamber.

2. In an inverted incandescent lamp the combination o'f an enlarged regenerative chamber having a short downtake, a sieve located in the said chamber in close roximity to theburningpoint and above the dbwntake, a source of air and gas supply entering the regenerative chamber above the sieve and re ceiving itsairsu ply from a point below the delivery-point o the downtake, and suflif roo ciently far away therefromto be out ofheatr conducting communication with vthe said delivery-point. Y

3. In an inverted incandescent lamp the combination of a regenerative chamber of decreasing area, a sievecontained therein, and a gasway entering the regenerative chamber above the sieve, the distance between the sieve and delivery-point of the regenerative chamber being substantially short with respect to the entire length of the regenerative chamber.

4. In an inverted incandescent lamp the combination -of ran enlarged regenerative chamber, a gas-delivery downtake projecting downward from thesaid. chamber to the burning-point, a sieve located in the said chamber' in close proximity to the burningpoint, a source of gas-supply entering the regenerative chamber' at a point above the sieve, and means for afl`ording a su v ply of air to the gasway at a'point remove from'the direct upward passage of heat y)from the burner; and at a sulicent distance therefrom to be substantiallT out of heat-conducting communication therewith.

5. In an inverted incandescent lamp the combination of an enlarged. regenerative chamber having a short downtake, a sieve located in the regenerative chamber'in close proximity to the downtake., a gasway entering the regenerative chamber above the sieve, and means for introducing an air-sup ply into the gasway at 'a point remote from the region of the direct u )ward passage of the products of combustion rom the latter.

OSCAR WIEDERHOLD.

Witnesses: J. A. GRAVES, GEO. E. MORSE. 

